GitHub - hackyourlife/brawshot: Temporal noise reduction for videos in BRAW format to get long virtual exposure time
brawshot
This tool processes videos in Blacmagic RAW format and applies a temporal
lowpass filter to significantly reduce noise for videos recorded in low light
environments. Essentially this results in a virtual "very long exposure time"
for video.
The Algorithm
A digital image sensor records images with noise. This noise, like most random
processes in nature, is roughly Gaussian distributed. Statistics tells us that
computing the mean of a large number of Gaussian distributed samples eventuall...
Read more at github.com